Sourced from puma's releases.

v7.2.1

• Bugfixes
  • Limit and anchor PROXY protocol v1 parsing to prevent abuse via crafted inputs (#3947)
  • Parse PROXY protocol only once per connection to prevent injection on keep-alive requests (#3947)

Security advisories

• CVE-2026-47736 / GHSA-qpgp-93vx-g8v8: Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion
• CVE-2026-47737 / GHSA-2vqw-3mp8-cgmx: Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections

v7.2.0 - On The Corner

• Features

  • Add workers :auto (#3827)
  • Make it possible to restrict control server commands to stats (#3787)

• Bugfixes

  • Don't break if WEB_CONCURRENCY is set to a blank string (#3837)
  • Don't share server between worker 0 and descendants on refork (#3602)
  • Fix phase check race condition in Puma::Cluster#check_workers (#3690)
  • Fix advertising of CLI config before config files are loaded (#3823)

• Performance

  • 17% faster HTTP parsing through pre-interning env keys (#3825)
  • Implement dsize and dcompact functions for Puma::HttpParser, which makes Puma's C-extension GC-compactible (#3828)

• Refactor

  • Remove NoMethodError rescue in Reactor#select_loop (#3831)
  • Various cleanups in the C extension (#3814)
  • Monomorphize handle_request return (#3802)

• Docs

  • Change link to docs/deployment.md in README.md (#3848)
  • Fix formatting for each signal description in signals.md (#3813)
  • Update deployment and Kubernetes docs with Puma configuration tips (#3807)
  • Rename master to main (#3809, #3808, #3800)
  • Fix some minor typos in the docs (#3804)
  • Add GOVERNANCE.md, MAINTAINERS (#3826)
  • Remove Code Climate badge (#3820)
  • Add @​joshuay03 to the maintainer list

• CI

  • Use Minitest 6 where applicable (#3859)
  • Many test suite improvements and flake fixes (#3861, #3863, #3860, #3852, #3857, #3856, #3845, #3843, #3842, #3841, #3822, #3817, #3764)

v7.1.0

7.1.0 / 2025年10月16日 - Neon Witch

neon_witch

• Features

... (truncated)

Sourced from puma's changelog.

7.2.1 / 2026年05月27日

• Bugfixes
  • Limit and anchor PROXY protocol v1 parsing to prevent abuse via crafted inputs (#3947)
  • Parse PROXY protocol only once per connection to prevent injection on keep-alive requests (#3947)

7.2.0 / 2026年01月20日

• Features

  • Add workers :auto (#3827)
  • Make it possible to restrict control server commands to stats (#3787)

• Bugfixes

  • Don't break if WEB_CONCURRENCY is set to a blank string (#3837)
  • Don't share server between worker 0 and descendants on refork (#3602)
  • Fix phase check race condition in Puma::Cluster#check_workers (#3690)
  • Fix advertising of CLI config before config files are loaded (#3823)

• Performance

  • 17% faster HTTP parsing through pre-interning env keys (#3825)
  • Implement dsize and dcompact functions for Puma::HttpParser, which makes Puma's C-extension GC-compactible (#3828)

• Refactor

  • Remove NoMethodError rescue in Reactor#select_loop (#3831)
  • Various cleanups in the C extension (#3814)
  • Monomorphize handle_request return (#3802)

• Docs

  • Change link to docs/deployment.md in README.md (#3848)
  • Fix formatting for each signal description in signals.md (#3813)
  • Update deployment and Kubernetes docs with Puma configuration tips (#3807)
  • Rename master to main (#3809, #3808, #3800)
  • Fix some minor typos in the docs (#3804)
  • Add GOVERNANCE.md, MAINTAINERS (#3826)
  • Remove Code Climate badge (#3820)
  • Add @​joshuay03 to the maintainer list

• CI

  • Use Minitest 6 where applicable (#3859)
  • Many test suite improvements and flake fixes (#3861, #3863, #3860, #3852, #3857, #3856, #3845, #3843, #3842, #3841, #3822, #3817, #3764)

7.1.0 / 2025年10月16日

• Features

  • Introduce after_worker_shutdown hook (#3707)
  • Reintroduce keepalive "fast inline" behavior. Provides faster (8x on JRuby & 1.4x on Ruby) pipeline processing (#3794)

• Bugfixes

  • Skip reading zero bytes when request body is buffered (#3795)
  • Fix PUMA_LOG_CONFIG=1 logging twice with prune_bundler enabled (#3778)

... (truncated)

• 92754ac Release v7.2.1 (#3948)
• ebe9db3 7.2.1 backport (#3947)
• 96b5aa6 v7.2.0 (#3864)
• 5d7d1dd Add workers :auto (#3827)
• b8c4783 ci: fix ci - remove append_as_bytes logic, misc changes (#3861)
• 44a3ac4 Fix PR label manager when maintainer comments [ci skip] (#3863)
• 43f5d89 Add GOVERNANCE.md, MAINTAINERS (#3826)
• 21afa66 Use Minitest 6 where applicable (#3859)
• ec7dd61 ci: Update test_http11.rb for TruffleRuby - string size (#3860)
• fa89dbe ci: add ruby 4.0 and rails 8.1 (#3852)
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